Steam is only officially supported on Ubuntu 12.04 LTS, and Steam (or the game) may not know which distro of Linux you are running.
Yes I am aware of this, I just mentioned Arch Linux as an example (on how to install the missing lib).
I edited the issue description to be more precise. The point is, the lib should be bundled with the game, that depends on it.
There would be many more problems if the lib was bundled with the game, dependency hell.
Other games bundle their required libs, I don't see how this would leed to problems. They will not be installed on the system, but loaded from the game folder.
This bug was closed because the issue concerns the game and not the Steam client. Please contact the game developer on their official website with this information.
Nothing extracted yet.
When starting the game, the following error occurs:
Installing libidn fixes the problem.
e.g. on Arch Linux I had to install: lib32-libidn
The lib should be bundled with the game!